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Design of resilient outdoor mass-notification system

Research Project

Project/Area Number 16KT0100
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeMulti-year Fund
Section特設分野
Research Field Intensification of Artifact Systems
Research InstitutionTohoku University

Principal Investigator

Sakamoto Shuichi  東北大学, 電気通信研究所, 准教授 (60332524)

Co-Investigator(Kenkyū-buntansha) 苣木 禎史  千葉工業大学, 先進工学部, 教授 (50284740)
西村 竜一  国立研究開発法人情報通信研究機構, 耐災害ICT研究センター応用領域研究室, 主任研究員 (30323116)
崔 正烈  東北大学, 電気通信研究所, 助教 (60398097)
Project Period (FY) 2016-07-19 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2017: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Keywords防災 / 音声通信 / レジリエント / ネットワーク
Outline of Final Research Achievements

Outdoor mass-notification systems can effectively convey emergency announcements over wide areas without requiring special receiver devices. However, they are designed under the assumption that all of their components will operate without flaw. If parts of the system are damaged, this can result in serious problems that quickly propagate, causing the whole system to fail. To cope with this kind of problems, we proposed an intelligent mass-notification system. In the proposal, each node communicates its status. The system identifies the nodes as active or inactive and adaptively adjusts the output levels of all loudspeakers based on this information. In addition, we developed an advanced speech presentation method robust to long-path echo conditions by controlling word familiarity and inserting pauses between phrases.

Academic Significance and Societal Importance of the Research Achievements

非常時にシステムの全てが正常に機能するという前提で構築されてきた防災無線屋外拡声システムを,ロングパスエコーなど音声聴取を妨げる様々な要因に対する頑健性も保ちつつ,音声の聴こえという観点から発展させており,安全,安心を実現する社会システムの実現に資する社会的な意義が極めて高い。得られた成果は,音響工学の知見が基盤となりつつも,様々な関連分野への展開も容易である。例えば,一部の子局の機能喪失を考慮した最適再生レベル決定アルゴリズムは自律分散システムへの適用が可能であるほか,長距離伝搬にも頑健な音声信号創出アルゴリズムは多目的ホールの設計などへの応用が考えられる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (21 results)

All 2019 2018 2017 2016

All Journal Article (9 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (12 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results)

  • [Journal Article] Effects of inter-word pauses on speech intelligibility under long-path echo conditions2018

    • Author(s)
      Shuichi Sakamoto, Tomori Miyashita, Zhenglie Cui, Masayuki Morimoto, Yo-iti Suzuki and Hayato Sato
    • Journal Title

      Applied Acoustics

      Volume: 140 Pages: 263-274

    • DOI

      10.1016/j.apacoust.2018.01.020

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 屋外拡声システムにおける回復力のあるノード間ネットワークの設計と実装2018

    • Author(s)
      上田祐己,苣木禎史,坂本修一,西村竜一,崔正烈
    • Journal Title

      電子情報通信学会技術研究報告

      Volume: EA2017-147 Pages: 251-254

    • Related Report
      2017 Research-status Report
  • [Journal Article] 防災行政無線屋外拡声レベルのU50に基づく最適設計2018

    • Author(s)
      西村竜一,坂本修一,苣木禎史,崔正烈
    • Journal Title

      電子情報通信学会技術研究報告

      Volume: EA2017-146 Pages: 245-250

    • Related Report
      2017 Research-status Report
  • [Journal Article] Speech Privacy for Sound Surveillance Using Super-Resolution Based on Maximum Likelihood and Bayesian Linear Regression2018

    • Author(s)
      R. Nishimura, S. Enomoto, and H. Kato
    • Journal Title

      IEICE Transactions on Information and Systems

      Volume: E101.D Issue: 1 Pages: 53-63

    • DOI

      10.1587/transinf.2017MUP0003

    • NAID

      130006301185

    • ISSN
      0916-8532, 1745-1361
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 屋外拡声放送を用いた反射位置推定システムのGUIに関する検討2018

    • Author(s)
      鈴木優太,苣木禎史
    • Journal Title

      電子情報通信学会技術研究報告

      Volume: EA2017-95 Pages: 13-18

    • Related Report
      2017 Research-status Report
  • [Journal Article] Method for updating microphone configuration in audio super-resolution2017

    • Author(s)
      R. Nishimura, S. Sakamoto, Y. Chisaki, and Z. Cui
    • Journal Title

      Journal of Information Hiding and Multimedia Signal Processing

      Volume: 8 Pages: 1352-1361

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of word familiarity on word intelligibility of four continuous words under long-path echo conditions2017

    • Author(s)
      Z. Cui, S. Sakamoto, M. Morimoto Masayuki, Y. Suzuki, and H. Sato
    • Journal Title

      Applied Acoustics

      Volume: 124 Pages: 30-37

    • DOI

      10.1016/j.apacoust.2017.02.001

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of word familiarity on word intelligibility of four continuous words under long-path echo conditions2017

    • Author(s)
      Z. Cui, S. Sakamoto, M. Mormoto, Y. Suzuki, and H. Sato
    • Journal Title

      Appliend Acoustics

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] ロングパスエコー下における既存の緊急速報を模した4連単語の了解度2016

    • Author(s)
      崔正烈,坂本修一,田村祐揮,鈴木陽一
    • Journal Title

      電子情報通信学会技術研究報告

      Volume: EA2016-26 Pages: 379-383

    • NAID

      40020946351

    • Related Report
      2016 Research-status Report
    • Acknowledgement Compliant
  • [Presentation] 単語・文章了解度試験を用いた様々な聴取環境における音声聴取能力測定手法の開発2019

    • Author(s)
      坂本修一
    • Organizer
      電子情報通信学会音声研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 背景音の付加が避難行動を喚起する音情報提示に与える影響2019

    • Author(s)
      渋谷壮,崔正烈,坂本修一,鈴木陽一,邑本俊亮
    • Organizer
      平成31年東北地区若手研究者研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] インテリジェント屋外拡声ノードの自律制御の検討2019

    • Author(s)
      川島拓海,白井匠,苣木禎史
    • Organizer
      電子情報通信学会応用音響研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Effects of inter-word pause and speech rate on word intelligibility in a long-path echo environment: For improvement of outdoor mass notification sound systems2018

    • Author(s)
      Zhenglie Cui, Minori Suzuki, Shuichi Sakamoto and Yo-iti Suzuki
    • Organizer
      25th International Congress on Sound and Vibration (ICSV25)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 防災行政無線屋外拡声装置群の最適再生レベル決定法に関する検討2018

    • Author(s)
      西村竜一,坂本修一,苣木禎史,崔正烈
    • Organizer
      日本音響学会2018年秋季研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 話速とポーズ長の組合せがロングパスエコー環境下の単語了解度に及ぼす影響2018

    • Author(s)
      崔正烈,坂本修一,鈴木陽一
    • Organizer
      日本音響学会2018年秋季研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 回復力を有する屋外拡声子局の公衆回線利用の検討2018

    • Author(s)
      遠藤仁,苣木禎史,坂本修一,西村竜一,崔正烈
    • Organizer
      日本音響学会2018年秋季研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 屋外拡声放送を用いた反射位置推定システムの設計と実装2018

    • Author(s)
      苣木禎史,鈴木優太,増田聖宣
    • Organizer
      日本音響学会講演論文集
    • Related Report
      2017 Research-status Report
  • [Presentation] ロングパスエコー環境下の単語了解度に及ぼす話速とポーズ長の影響2017

    • Author(s)
      崔正烈,鈴木美乃里,坂本修一,鈴木陽一
    • Organizer
      日本音響学会2017年秋季研究発表会
    • Related Report
      2017 Research-status Report
  • [Presentation] Optimization of speech presentation in mass-notification sound systems based on word intelligibility2016

    • Author(s)
      S. Sakamoto, Z. Cui, M. Morimoto, and Y. Suzuki
    • Organizer
      5th Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      2016-11-28
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Improvement of signal to noise ratio at outdoor listing position by sound emission timing control over the Internet for mass notification system2016

    • Author(s)
      Y. Chisaki and T. Onoguchi
    • Organizer
      5th Joint Meeting of the Acoustical Society of America and the Acoustical Society of Japan
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      2016-11-28
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ロングパスエコー下における既存の緊急速報を模した4連単語の了解度2016

    • Author(s)
      崔正烈,坂本修一,田村祐揮,鈴木陽一
    • Organizer
      電子情報通信学会応用音響研究会
    • Place of Presentation
      東北学院大学,多賀城市
    • Year and Date
      2016-08-09
    • Related Report
      2016 Research-status Report

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Published: 2016-07-20   Modified: 2023-03-08  

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